Acetaminophen (Tylenol) Poisoning Prognosis

The outcome for someone who has an acetaminophen overdose depends largely on three factors:

the amount of acetaminophen ingested,

the timing of emergency treatment, and

the initial general health of the person.

If a toxic dose is taken and emergency treatment is delayed, liver failure may follow. Liver failure may mean that a liver transplant is needed. Alternatively, if treatment of a toxic overdose is begun early, the person may recover with no long-term health problems.